Robert Klein Books

This book is about the adventures of a child who becomes a young man: how he thinks and dreams and lusts and fears and laughs and handles adversity. From the beginning of his distinguished career a...

Form and Meaning

By Robert Klein

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Scheduling of Resource Constrained Projects OPERATIONS RESEARCH COMPUTER SCIENCE INTERFACES Volume 10

By Robert Klein

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Italian Art 1500 1600

By Robert Klein, Klein Robert, Henri Zerner

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Scheduling of Resource-Constrained Projects

By Robert Klein

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Project management has become a widespread instrument enabling organizations to efficiently master the challenges of steadily shortening product life cycles, global markets and decreasing profit ma...

How to Convert ISBN-10 to ISBN-13 (and Vice Versa): A Complete Guide

If you’re in the world of books—whether as a publisher, librarian, bookseller, or avid collector—you’ve likely come across the terms ISBN-10 and ISBN-13. Understanding these formats and knowing how to convert between them is essential for maintaining consistency and compatibility in book records. In this post, we’ll cover everything you need to know about ISBN conversions, step by step.

What is an EAN and How Does it Relate to an ISBN?

If you’ve ever purchased a product online or in a store, you’ve likely come across a barcode. Behind these barcodes lies a standardized system that makes modern commerce possible. Two key codes often encountered are the EAN (European Article Number) and ISBN (International Standard Book Number). But what are they, how are they connected, and why are they so crucial? Let’s explore.